Video: Mannitol ntsev agar xeem yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Mannitol ntsev Agar pom zoo kom cais cov kab mob staphylococci los ntawm cov qauv, tshuaj pleev ib ce, thiab microbial txwv kev xeem . Cov kab mob uas loj hlob nyob rau hauv lub xub ntiag ntawm siab ntsev concentration thiab fermentation mannitol tshuaj tsim cov khoom lag luam kua qaub, tig lub phenol liab pH qhia los ntawm liab mus rau daj.
Tsis tas li, dab tsi yog mannitol ntsev agar siv rau?
Mannitol ntsev agar los yog MSA feem ntau siv xaiv thiab sib txawv loj hlob nruab nrab hauv microbiology. Nws txhawb kev loj hlob ntawm ib pab pawg ntawm cov kab mob thaum tiv thaiv kev loj hlob ntawm lwm tus.
Tsis tas li ntawd, E coli tuaj yeem loj hlob ntawm mannitol ntsev agar? (A) Staphylococcus aureus, (B) Staphylococcus epidermidis, thiab (C) Escherichia coli cov streak rau a mannitol ntsev agar phaj. Cov mannitol tshuaj fermenting colony (daj) yog S. The kev loj hlob ntawm E . coli cov tau inhibited los ntawm lub siab ntsev concentration.
Tsis tas li ntawd, dab tsi yog cov khoom xaiv hauv mannitol ntsev agar?
Mannitol ntsev agar yog xaiv vim tias muaj 7.5% sodium chloride (NaCl). Hypertonic concentration ntawm cov xov xwm vim yog ntsev tso cai
Dab tsi yog tus neeg sawv cev lossis tshuaj hauv mannitol ntsev agar uas ua rau qhov sib txawv nruab nrab?
MSA kuj muaj cov piam thaj mannitol thiab pH ntsuas phenol liab . Yog tias lub cev muaj peev xwm ferment mannitol, cov kua qaub los ntawm cov khoom tsim los uas yuav ua rau phenol liab nyob rau hauv agar kom tig daj. Feem ntau cov kab mob staphylococci cov tsos mob , zoo li Staphylococcus aureus, yuav ferment mannitol.
Pom zoo:
Puas yog ntsev ntsev ntawm tes nyab xeeb rau menyuam yaus?
Cov ntaub so ntswg ntsev, tseem hu ua ntsev ntawm tes lossis ntsev ntsev biochemic, tau pom ib txwm nyob hauv cov pob zeb thiab av, nroj tsuag thiab tsiaj txhu (suav nrog tib neeg). Cov ntaub so ntswg ntsev yog pheej yig, thiab muaj kev nyab xeeb rau siv rau txhua tus, los ntawm menyuam yaus mus rau cov neeg mob ntshav qab zib thiab txawm tias tsiaj. Lawv feem ntau tuaj hauv cov ntsiav tshuaj
Lub hom phiaj ntawm txhua feem hauv mannitol ntsev agar phaj yog dab tsi?
Mannitol ntsev Agar muaj peptones thiab nqaij nyug extract, uas muab nitrogen, vitamins, minerals thiab amino acids tseem ceeb rau kev loj hlob. Qhov 7.5% cov ntsiab lus ntawm sodium chloride ua rau ib nrab lossis ua tiav kev tiv thaiv kab mob ntawm cov kab mob uas tsis yog staphylococci
Dab tsi yog mannitol ntsev agar siv rau?
Mannitol ntsev agar lossis MSA feem ntau siv xaiv thiab sib txawv ntawm kev loj hlob nruab nrab hauv microbiology. Nws txhawb txoj kev loj hlob ntawm ib pawg ntawm qee cov kab mob thaum inhibiting kev loj hlob ntawm lwm tus
Dab tsi yog qhov kev xeem hloov pauv pej xeem xeem?
Yog tus qauv dav dav ntawm cov pej xeem hloov pauv los ntawm kev yug me nyuam thiab kev tuag siab mus rau kev yug me nyuam thiab kev tuag tsawg, thiab tau pom nyob rau hauv keeb kwm ntawm ntau lub teb chaws tsim. Txoj kev xav tom qab kev hloov pauv pej xeem yog kev tsim khoom lag luam ua rau muaj kev lag luam thiab kev vam meej hauv zej zog uas tom qab ntawd cuam tshuam rau cov pej xeem kev nce nqi
Dab tsi yog qhov ua haujlwm ntawm cov ntsev ntsev hauv kev zom zaub mov?
Cov kua ntsev tso tawm cov rog thiab zom lawv mus rau hauv me me uas muab cov enzyme lipase thaj chaw ntau dua los ua thaum lub sijhawm zom cov rog. Kev zom zaub mov carbohydrate pib hauv lub qhov ncauj nrog salivary amylase